<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <!-- 
        js示例图步骤:
        1.引入外部链接
        2.定义一个宽高div
        3.初始化echarts实例 （echarts.init(声明元素)
        4.配置图表数据（var option = {}
        5.使用配置项和图标（myChart.setOption(option);
     -->
    <!-- 2.为 ECharts 准备一个定义了宽高的 DOM -->
    <div id="main" style="width: 800px; height: 600px"></div>

    <!-- 1.引入外部连接 -->
    <script
      crossorigin="anonymous"
      integrity="sha512-CNXD81ugRg68yNQQ9TSlZb/pLzbJ5Xo+QRQhIKxW7U3wwYOTcb9O0Q+3yWiWvwBElV/z7oo0hlqOqxPyMbZ8zQ=="
      src="https://lib.baomitu.com/echarts/5.3.3/echarts.common.js"
    ></script>
    <script>
      // 3.基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById("main"));

      // 4.指定图表的配置项和数据
      var option = {
        legend: {
          top: "bottom",
        },
        toolbox: {
          show: true,
          feature: {
            mark: { show: true },
            dataView: { show: true, readOnly: false },
            restore: { show: true },
            saveAsImage: { show: true },
          },
        },
        series: [
          {
            name: "Nightingale Chart",
            type: "pie",
            radius: [50, 250],
            center: ["50%", "50%"],
            roseType: "area",
            itemStyle: {
              borderRadius: 8,
            },
            data: [
              { value: 40, name: "rose 1" },
              { value: 38, name: "rose 2" },
              { value: 32, name: "rose 3" },
              { value: 30, name: "rose 4" },
              { value: 28, name: "rose 5" },
              { value: 26, name: "rose 6" },
              { value: 22, name: "rose 7" },
              { value: 18, name: "rose 8" },
            ],
          },
        ],
      };

      // 5.使用刚指定的配置项和数据显示图表。
      myChart.setOption(option);
    </script>
  </body>
</html>
